If this is the case and she wants to start over, and you want to start over, I would delete every copy. This is not about who is right or wrong, it is about your relationship with your wife and rebuilding it. It would be bad if you guys fixed this thing, then 2 years down the road this emails popped up somewhere. She would claim that you were not over "it" and you have not truly forgiven her. Also, YOU don't want to read these emails 2 years form now either because if you do want to make the marriage work you have to have forgiveness in your heart.
